EP1297572B1 - Led lamp - Google Patents
Led lamp Download PDFInfo
- Publication number
- EP1297572B1 EP1297572B1 EP01942891A EP01942891A EP1297572B1 EP 1297572 B1 EP1297572 B1 EP 1297572B1 EP 01942891 A EP01942891 A EP 01942891A EP 01942891 A EP01942891 A EP 01942891A EP 1297572 B1 EP1297572 B1 EP 1297572B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lamp
- light emitting
- junctions
- light
- conductors
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
- H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
- H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
- H01L25/0753—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00 the devices being arranged next to each other
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/48245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
- H01L2224/48247—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a bond pad of the item
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/62—Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S362/00—Illumination
- Y10S362/80—Light emitting diode
Definitions
- the present invention relates to an LED lamp.
- US Patent No. 5998925 discloses a light emitting device which comprises a semi-conductor light emitting layer embedded in a transparent globe.
- a fluorescent material covers the semi-conductor layer to receive the emitted light for transmission at a different wavelength, i.e, in a predetermined colour.
- GB 2311126 discloses a comparatively large scale light source which includes an array of separately mounted light emitting diodes which appear to have respective leads hardwired to a planar conductor. The diodes are encapsulated by a lens which is used to focus the light from the array.
- US 5084804 discloses a wide-area lamp in which luminescent semi-conductor elements in a wide-area spread are connected to one another by a conducting path structure.
- FR 2588109 discloses a support onto which are fixed light emitting diodes where the support is shaped in such a way that in use the axes of the various diodes are not all parallel.
- the present invention seeks to provide an alternative form of LED lamp which can provide high intensity output by utilising a plurality of light emitting diodes, whilst maintaining the appearance of a substantially point source of illumination.
- the lamp1 as shown in Figure 1 , includes a globe portion 2 with a cylindrical base 3 and a parabolic end 4, configured to enhance illumination output in an axial direction of the lamp.
- the lamp also includes first and second terminals, which are preferably in the form of conductors 5,6 which are embedded within the globe portion 2.
- the lead 5 has a support platform 7 to which is mounted an integrated circuit wafer 8.
- the wafer includes two junctions which are arranged substantially adjacent each other so that a common layer of fluorescent material, such as a phosphor layer, may be applied over both junctions.
- Intermediate conductors 9 to 12 electrically couple the junctions to the respective terminals 5,6 so that the LED junctions 14,15 are arranged in reverse polarity, as indicated in the circuit diagram Figure 3 .
- a resistive element 16 is provided between a further conductor 13 (connecting the intermediate conductors 11 and 12) and the lead 5.
- the conductors 5,6, intermediate conductors 9 to 13, and wafer 8 are all embedded within the globe portion 2 so that the lamp is presented as a robust unitary structure.
- the reverse polarity of the junctions allows the lamp to be connected to a power source without concern for polarity.
- the use of a single phosphor layer, common to each of the junctions, also simplifies manufacture and provides an aesthetic advantage in that the light from either junction is perceived to originate from a single source.
- the following specifications may apply: NOMINAL SIZE - 9.5mm diameter LIGHT COLOUR - WHITE GLOBE COLOUR - WATER CLEAR LIGHT INTENSITY - SUPERBRIGHT TYPICAL LIGHT OUTPUT > 500mCd @ 20mA GUARANTEED LIFE - 30,000 HOURS FOCUS - HALF ANGLE 15° typ. BASE STYLE - INTERCHANGEABLE WITH WEDGE TYPE LAMPS LEAD DIMENSIONS - 6mm nom. OUTSIDE BASE WEDGE SUPPLY VOLTAGE - 12VOLTS nom.
- any of the component parts of the lamp may vary, as required and the number of LED junctions may also be increased to suit illumination needs.
- FIG. 1 A second example of a lamp 20 which does not form part of the invention is now described with reference to Figures 4 to 8 .
- the lamp 20 is generally similar in construction to that of Figures 1 to 3 , in sofar as first and second terminals 21 and 22 are provided, in the form of conductors 23,24 embedded in a globe portion 25, together with additional conductors 26,27.
- Each of the conductors 23,26 and 27 have a respective recess 28, to profile support structure for receiving an associated junction, indicated by reference numerals 29,30,31.
- the junctions are covered by a common layer of phosphor 35 and are electrically coupled between each respective conductors 23,26,27 to which they are mounted, and the adjacent conductor via intermediate conductors 32,33,34. In the example shown, the junctions are serially connected, as represented by the circuit diagram of Figure 5 .
- All of the conductors 23,24,26,27 are preferably formed in a two dimensional lead frame structure 40 shown in Figure 6 , to allow ease of manufacture and reliability in directly positioning the junctions 29,30,31 within the globe portion 25, after application of the phosphor layer 25.
- the junctions 29,30,31 are arranged in a generally linear array, with the conductors 23,27 projecting above the conductor 26 so that the overall illumination generated by the junctions will be somewhat enhanced on-axis, as represented in Figure 8 by curve A.
- the lamp 20 may also be provided with a lens 41 which is fitted to the globe portion 25 and shaped so as to modify the light generated by the lamp to produce, for example, the illumination pattern represented by curve B in Figure 8 , whereby the output illumination is somewhat more evenly distributed.
- a lens 41 which is fitted to the globe portion 25 and shaped so as to modify the light generated by the lamp to produce, for example, the illumination pattern represented by curve B in Figure 8 , whereby the output illumination is somewhat more evenly distributed.
- FIG. 9 to 16 a third lamp 50 according to the invention is illustrated.
- the lamp 50 is in general similar to the previous lamp construction insofar as a plurality of conductors 51,52,53 and 54 are embedded within a unitary globe portion 55 and have light emitting junctions 56 mounted in respective recesses 57 and covered by a common layer of fluorescent material 59.
- Each junction is again electrically coupled to the respective conductor to which it is mounted and an adjacent conductor via intermediate conducts 58 so as to form the circuit illustrated in Figure 10 .
- Each of the conductors 51 to 54 in this instance, however, carrying three junctions 56.
- the conductors 51 to 53 are curved within the globe portion 55 so as to support the junctions on an imaginary curved surface such as a spheroid and, in that manner, the illumination generated by the lamp 50 will have an appearance of emanating from a small, generally spheroid point like source.
- a lens 60 may also be provided for modifying the output of the junctions to produce a more even distribution pattern such as represented by curve C in Figure 16 , which is the illumination output observed from a plan view of the lamp 50, i.e. when the lamp is seen from the same direction as viewed in Figure 9 .
- each recess may be such that for example, the recess side walls act as optical guides to control the direction and/or angle of divergence of light emitted from each junction.
- the recesses 57 containing the LED junctions are positioned and shaped in the conductors 51,52,53 so that the beams of light emerging from the recesses may be combined in free space outside the lamp 50 in predictable patterns determined by the radius of the imaginary part spherical surface designated 'R', the distance from the LED junction in the recess to the intersection of the imaginary extension of the sides of a recess - designated 'r' and the angle 'A' between the centre line 61 of the lamp 50 and a centre line 62 passing through the perpendicular to any other LED junction.
- the radius 'R' of the imaginary spherical surface is the distance from the intersection of those centre lines to the LED junction within the recess.
- the angle between the sides of a recess determines the value of the 'r'.
- 'r' is equal to or greater than 'R'
- the light from each LED junction will be shaped by the recesses into beams which do not cross, regardless of the value of an angle 'A'.
- 'r' less than 'R' it will be possible to have the light beam from each LED junction coincide with the edges of the light beams from adjacent LED junctions. The exact positioning if this instance will be determined by the ratio R/r and the value of angle 'A'.
- the present invention allows a considerable scope for obtaining a light source using junction diodes, with a predetermined one of a variety of output illumination patterns whilst maintaining a generally simple construction.
- a particular advantage is that the various junctions are of small size and may be configured to produce a light output which may be perceived by the naked eye to be emanating from a single point source of light.
Abstract
Description
- The present invention relates to an LED lamp.
-
US Patent No. 5998925 discloses a light emitting device which comprises a semi-conductor light emitting layer embedded in a transparent globe. A fluorescent material covers the semi-conductor layer to receive the emitted light for transmission at a different wavelength, i.e, in a predetermined colour. - To increase the intensity of the light output, additional semi-conductor devices may be added, such as shown in
US Patent No. 5289082 , which discloses an LED lamp having a plurality of semi-conductive chips mounted in a translucent body. Each chip emits a discrete light pattern, however, and that may be undesirable if the light from the lamp is desired to have an appearance of emitting from a single, point-like light source. In theUS 5289082 , the discrete light outputs are combined and focussed, by specific shaping of the body to produce an overall light output having a required illumination pattern. -
GB 2311126 -
US 5084804 discloses a wide-area lamp in which luminescent semi-conductor elements in a wide-area spread are connected to one another by a conducting path structure.FR 2588109 - The present invention seeks to provide an alternative form of LED lamp which can provide high intensity output by utilising a plurality of light emitting diodes, whilst maintaining the appearance of a substantially point source of illumination.
- In accordance with the present invention, there is provided a lamp as defined in the claims.
- The invention will be described in more detail with reference to the drawings in which:
-
Figure 1 is a side-view of an LED lamp; -
Figure 2 is a plan-view of the lamp ofFigure 1 ; -
Figure 3 is a circuit diagram for the lamp offigures 1 and 2 ; -
Figure 4 is a diagrammatic cross-sectional view of a second LED lamp; -
Figure 5 is a circuit diagram of the lamp ofFigure 4 ; -
Figure 6 is a cross-sectional view of the lamp ofFigure 4 ; -
Figure 7 is a plan view of the lamp ofFigure 4 ; -
Figure 8 is a representation of an illumination pattern of the lamp ofFigures 4 to 7 ; -
Figure 9 is a plan view of a third lamp; -
Figure 10 is a circuit diagram for the lamp ofFigure 9 ; -
Figure 11 is a front view of the lamp ofFigure 9 ; -
Figure 12 is a side view of the lamp ofFigure 9 ; -
Figure 13 is a side view of a lens for fitting on the lamp ofFigure 9 ; -
Figure 14 is a cross-sectional view taken along the line X-X shown inFigure 9 ; -
Figure 15 is a cross-sectional view taken along the line Y-Y shown inFigure 10 ; and, -
Figure 16 is a representation of the illumination pattern produced by the lamp ofFigures 9 to 12 . - The lamp1, as shown in
Figure 1 , includes a globe portion 2 with acylindrical base 3 and a parabolic end 4, configured to enhance illumination output in an axial direction of the lamp. The lamp also includes first and second terminals, which are preferably in the form ofconductors lead 5 has asupport platform 7 to which is mounted an integratedcircuit wafer 8. In the example given, the wafer includes two junctions which are arranged substantially adjacent each other so that a common layer of fluorescent material, such as a phosphor layer, may be applied over both junctions.Intermediate conductors 9 to 12 electrically couple the junctions to therespective terminals LED junctions Figure 3 . Aresistive element 16 is provided between a further conductor 13 (connecting theintermediate conductors 11 and 12) and thelead 5. - The
conductors intermediate conductors 9 to 13, andwafer 8 are all embedded within the globe portion 2 so that the lamp is presented as a robust unitary structure. The reverse polarity of the junctions allows the lamp to be connected to a power source without concern for polarity. The use of a single phosphor layer, common to each of the junctions, also simplifies manufacture and provides an aesthetic advantage in that the light from either junction is perceived to originate from a single source. - In a preferred form of the LED lamp, the following specifications may apply:
NOMINAL SIZE - 9.5mm diameter LIGHT COLOUR - WHITE GLOBE COLOUR - WATER CLEAR LIGHT INTENSITY - SUPERBRIGHT TYPICAL LIGHT OUTPUT > 500mCd @ 20mA GUARANTEED LIFE - 30,000 HOURS FOCUS - HALF ANGLE 15° typ.BASE STYLE - INTERCHANGEABLE WITH WEDGE TYPE LAMPS LEAD DIMENSIONS - 6mm nom. OUTSIDE BASE WEDGE SUPPLY VOLTAGE - 12VOLTS nom. {>11.5<14 volts AC or DC} FORWARD CURRENT - 20 +8/-3 mA @ 12Volts FORWARD VOLTAGE - 3.6 min(typ) 4.0max. @ 20mA REVERSE VOLTAGE - 5Volts min. POWER DISSIPATION - LED JUNCTIONS 120Mw RESISTOR 170mW REVERSE CURRENT - 50 x 10-3 mA max. @ 5V INTERNAL RESISTOR - 430 ohms nom. - It should, however, be appreciated that the size configuration and operating parameters of any of the component parts of the lamp may vary, as required and the number of LED junctions may also be increased to suit illumination needs.
- A second example of a
lamp 20 which does not form part of the invention is now described with reference toFigures 4 to 8 . Thelamp 20 is generally similar in construction to that ofFigures 1 to 3 , in sofar as first andsecond terminals conductors globe portion 25, together withadditional conductors conductors respective recess 28, to profile support structure for receiving an associated junction, indicated byreference numerals phosphor 35 and are electrically coupled between eachrespective conductors intermediate conductors Figure 5 . - All of the
conductors lead frame structure 40 shown inFigure 6 , to allow ease of manufacture and reliability in directly positioning thejunctions globe portion 25, after application of thephosphor layer 25. As can be seen from bothFigures 6 and 7 , thejunctions conductors conductor 26 so that the overall illumination generated by the junctions will be somewhat enhanced on-axis, as represented inFigure 8 by curve A. - The
lamp 20 may also be provided with alens 41 which is fitted to theglobe portion 25 and shaped so as to modify the light generated by the lamp to produce, for example, the illumination pattern represented by curve B inFigure 8 , whereby the output illumination is somewhat more evenly distributed. - Turning now to
Figures 9 to 16 , athird lamp 50 according to the invention is illustrated. Again, thelamp 50 is in general similar to the previous lamp construction insofar as a plurality ofconductors unitary globe portion 55 and havelight emitting junctions 56 mounted inrespective recesses 57 and covered by a common layer offluorescent material 59. Each junction is again electrically coupled to the respective conductor to which it is mounted and an adjacent conductor viaintermediate conducts 58 so as to form the circuit illustrated inFigure 10 . Each of theconductors 51 to 54, in this instance, however, carrying threejunctions 56. - The
conductors 51 to 53 are curved within theglobe portion 55 so as to support the junctions on an imaginary curved surface such as a spheroid and, in that manner, the illumination generated by thelamp 50 will have an appearance of emanating from a small, generally spheroid point like source. Alens 60 may also be provided for modifying the output of the junctions to produce a more even distribution pattern such as represented by curve C inFigure 16 , which is the illumination output observed from a plan view of thelamp 50, i.e. when the lamp is seen from the same direction as viewed inFigure 9 . - In addition to modifying the light output by using the
lens 60, it is also possible to arrange the conductors in any desired configuration and the construction of therecesses 57 may also be used to assist in controlling the directional output of the light emitted from the various junctions. In particular, the configuration of each recess may be such that for example, the recess side walls act as optical guides to control the direction and/or angle of divergence of light emitted from each junction. - More specifically, the shape of each recess and its effect on the light output from the junctions will now be described in more detail with reference to
Figures 14 and 15 , which show cross-sectional views of the relevant conductors taken along the lines X-X and Y-Y shown inFigures 11 and 12 respectively. - The
recesses 57 containing the LED junctions are positioned and shaped in theconductors lamp 50 in predictable patterns determined by the radius of the imaginary part spherical surface designated 'R', the distance from the LED junction in the recess to the intersection of the imaginary extension of the sides of a recess - designated 'r' and the angle 'A' between thecentre line 61 of thelamp 50 and acentre line 62 passing through the perpendicular to any other LED junction. - The radius 'R' of the imaginary spherical surface is the distance from the intersection of those centre lines to the LED junction within the recess. The angle between the sides of a recess determines the value of the 'r'.
- In the limiting case 'r' is equal to or greater than 'R', the light from each LED junction will be shaped by the recesses into beams which do not cross, regardless of the value of an angle 'A'. For all values of 'r' less than 'R' it will be possible to have the light beam from each LED junction coincide with the edges of the light beams from adjacent LED junctions. The exact positioning if this instance will be determined by the ratio R/r and the value of angle 'A'.
- As may be appreciated from the above, the present invention allows a considerable scope for obtaining a light source using junction diodes, with a predetermined one of a variety of output illumination patterns whilst maintaining a generally simple construction. A particular advantage is that the various junctions are of small size and may be configured to produce a light output which may be perceived by the naked eye to be emanating from a single point source of light.
- The above LED lamps have been described by way of a non-limiting example only.
Claims (7)
- A lamp (50) including a plurality of light emitting junctions (56) mounted to a plurality of curved conductors (51, 52, 53) so that said plurality of light emitting junctions (56) is arranged in three/dimensions, wherein
said plurality of curved conductors includes recesses (57) for receipt of said light emitting junctions (56), said light emitting junctions (56) being mounted in respective ones of the recesses (57), said plurality of curved conductors (51, 52, 53) defining an imaginary spheroid surface and supporting said light emitting junctions (56) on said imaginary spheroid surface so that illumination generated by the lamp (50) appears to emanate from a single point source of light, and
wherein each light emitting junction (56) is electrically connected to the curved conductor (51, 52, 53) out of said plurality of curved conductors (51, 52, 53) to which it is mounted, and to an adjacent conductor (52, 53, 54) out of said plurality of curved conductors (51, 52, 53). - A lamp (50) as claimed in claim 1 wherein said plurality of curved conductors (51, 52, 53) includes three curved conductors (51, 52, 53).
- A lamp (50) as claimed in claim 2 wherein three recesses (57) are formed in each of the three curved conductors (51, 52, 53).
- A lamp (50) as claimed in any preceding claim, wherein the lamp (50) includes a common layer of fluorescent material over at least adjacent light emitting junctions (56).
- A lamp (50) as claimed in any preceding claim, wherein the recesses (57) have side walls which function as an optical guide for controlling the direction of light transmission and/or the angle of divergence of light emitted from each light emitting junction (56).
- A lamp (50) as claimed in any preceding claim, wherein the lamp (50) includes a globe portion, with the light emitting junctions (56) and said plurality of curved conductors (51, 52, 53) being embedded within the globe portion so that the lam(50) is formed as a unitary structure.
- A lamp (50) as claimed in claim 6, wherein the lamp (50) includes a lens adapted to fit with the globe portion (55), and configured to shape the light emitted from the globe portion (55) into a predetermined pattern.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPQ8181A AUPQ818100A0 (en) | 2000-06-15 | 2000-06-15 | Led lamp |
AUPQ818100 | 2000-06-15 | ||
PCT/AU2001/000717 WO2001097287A1 (en) | 2000-06-15 | 2001-06-15 | Led lamp |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1297572A1 EP1297572A1 (en) | 2003-04-02 |
EP1297572A4 EP1297572A4 (en) | 2006-09-13 |
EP1297572B1 true EP1297572B1 (en) | 2011-07-27 |
Family
ID=3822250
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01942891A Expired - Lifetime EP1297572B1 (en) | 2000-06-15 | 2001-06-15 | Led lamp |
Country Status (13)
Country | Link |
---|---|
US (2) | US6809475B2 (en) |
EP (1) | EP1297572B1 (en) |
JP (1) | JP2004503120A (en) |
KR (1) | KR20030019426A (en) |
CN (1) | CN1460294A (en) |
AT (1) | ATE518246T1 (en) |
AU (1) | AUPQ818100A0 (en) |
CA (1) | CA2411219A1 (en) |
HK (1) | HK1054817A1 (en) |
NZ (1) | NZ512392A (en) |
TW (1) | TWI251350B (en) |
WO (1) | WO2001097287A1 (en) |
ZA (1) | ZA200209990B (en) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
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AUPQ818100A0 (en) * | 2000-06-15 | 2000-07-06 | Arlec Australia Limited | Led lamp |
US7320632B2 (en) * | 2000-06-15 | 2008-01-22 | Lednium Pty Limited | Method of producing a lamp |
EP1552560A4 (en) * | 2002-06-14 | 2006-10-25 | Lednium Pty Ltd | A lamp and method of producing a lamp |
TW200507226A (en) * | 2003-03-12 | 2005-02-16 | Lednium Pty Ltd | A lamp and a process for producing a lamp |
US7038370B2 (en) * | 2003-03-17 | 2006-05-02 | Lumileds Lighting, U.S., Llc | Phosphor converted light emitting device |
US7575030B2 (en) * | 2003-12-10 | 2009-08-18 | Hutchinson | Runflat device for a motor vehicle, and a mounted assembly incorporating it |
US8896216B2 (en) | 2005-06-28 | 2014-11-25 | Seoul Viosys Co., Ltd. | Illumination system |
KR100712891B1 (en) * | 2005-12-21 | 2007-05-02 | 서울옵토디바이스주식회사 | Light emitting diode and light emitting device for ac power operation with plurality of light emitting cell arrays |
CN101795510A (en) | 2005-06-28 | 2010-08-04 | 首尔Opto仪器股份有限公司 | Light-emitting device |
KR101171355B1 (en) * | 2005-06-28 | 2012-08-10 | 서울옵토디바이스주식회사 | Luminescent apparatus |
EP2089915B1 (en) * | 2007-08-03 | 2018-08-01 | Panasonic Intellectual Property Management Co., Ltd. | Wavelength-converted light-emitting device with uniform emission |
US8067777B2 (en) * | 2008-05-12 | 2011-11-29 | Occam Portfolio Llc | Light emitting diode package assembly |
KR100889916B1 (en) * | 2008-09-09 | 2009-04-16 | 동광전자 주식회사 | The light at one side right department the light-emitting diode which radiates and the production method |
IT1399596B1 (en) | 2009-09-29 | 2013-04-26 | Zanotta | ROAD LIGHTS FOR CHROMATIC STORAGE FOR THE REDUCTION OF ENERGY CONSUMPTION AND ITS METHOD OF CONSTRUCTION, USE AND CONTROL |
US9425372B2 (en) * | 2010-01-29 | 2016-08-23 | Japan Aviation Electronics Industry, Limited | LED device, method of manufacturing the same, and light-emitting apparatus |
EP2392850B1 (en) * | 2010-06-04 | 2017-07-19 | Ville de Geneve | LED light bulb |
CN202091826U (en) | 2011-05-05 | 2011-12-28 | 厦门砺德光电科技有限公司 | LED (Light-Emitting Diode) reflective regulating lamp |
KR102007403B1 (en) * | 2012-11-02 | 2019-08-05 | 엘지이노텍 주식회사 | Light emitting device package and lighting unit including the same |
FR3012204B1 (en) | 2013-10-18 | 2015-10-30 | Valeo Vision | SYSTEM FOR ELECTRICALLY CONNECTING AT LEAST ONE LIGHT SOURCE TO AN ELECTRICAL POWER SUPPLY SYSTEM |
US20150116999A1 (en) * | 2013-10-30 | 2015-04-30 | Avago Technologies General Ip (Singapore) Pte. Ltd | Mono-axial lens for multiple light sources |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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- 2001-06-15 JP JP2002511390A patent/JP2004503120A/en active Pending
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- 2001-06-15 AT AT01942891T patent/ATE518246T1/en not_active IP Right Cessation
- 2001-06-15 US US10/049,572 patent/US6809475B2/en not_active Expired - Lifetime
- 2001-06-15 CN CN01811113A patent/CN1460294A/en active Pending
- 2001-07-06 TW TW090116693A patent/TWI251350B/en not_active IP Right Cessation
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2002
- 2002-12-10 ZA ZA200209990A patent/ZA200209990B/en unknown
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2003
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DE9414688U1 (en) * | 1994-09-10 | 1994-12-15 | Schluemer Heinz Dieter | Light source for traffic light systems |
Also Published As
Publication number | Publication date |
---|---|
EP1297572A4 (en) | 2006-09-13 |
EP1297572A1 (en) | 2003-04-02 |
TWI251350B (en) | 2006-03-11 |
US6809475B2 (en) | 2004-10-26 |
KR20030019426A (en) | 2003-03-06 |
CN1460294A (en) | 2003-12-03 |
US7352127B2 (en) | 2008-04-01 |
NZ512392A (en) | 2002-12-20 |
JP2004503120A (en) | 2004-01-29 |
WO2001097287A1 (en) | 2001-12-20 |
HK1054817A1 (en) | 2003-12-12 |
US20050104515A1 (en) | 2005-05-19 |
ZA200209990B (en) | 2003-10-20 |
US20020145384A1 (en) | 2002-10-10 |
ATE518246T1 (en) | 2011-08-15 |
CA2411219A1 (en) | 2001-12-20 |
AUPQ818100A0 (en) | 2000-07-06 |
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